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gs: use tty_port

Browse source 
Switch drivers using the old "generic serial" driver to use the tty_port
structures

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alan Cox 2008-07-16 21:55:20 +01:00 committed by Linus Torvalds
parent 4982d6b37a
commit b5391e29f4
8 changed files with 166 additions and 173 deletions
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158
drivers/char/generic_serial.c
View file

@ -60,7 +60,7 @@ int gs_put_char(struct tty_struct * tty, unsigned char ch)
if (!port) return 0;
if (! (port->flags & ASYNC_INITIALIZED)) return 0;
if (! (port->port.flags & ASYNC_INITIALIZED)) return 0;
/* Take a lock on the serial tranmit buffer! */
mutex_lock(& port->port_write_mutex);
@ -103,7 +103,7 @@ int gs_write(struct tty_struct * tty,
if (!port) return 0;
if (! (port->flags & ASYNC_INITIALIZED))
if (! (port->port.flags & ASYNC_INITIALIZED))
return 0;
/* get exclusive "write" access to this port (problem 3) */
@ -141,13 +141,13 @@ int gs_write(struct tty_struct * tty,
mutex_unlock(& port->port_write_mutex);
gs_dprintk (GS_DEBUG_WRITE, "write: interrupts are %s\n",
(port->flags & GS_TX_INTEN)?"enabled": "disabled");
(port->port.flags & GS_TX_INTEN)?"enabled": "disabled");
if (port->xmit_cnt &&
!tty->stopped &&
!tty->hw_stopped &&
!(port->flags & GS_TX_INTEN)) {
port->flags |= GS_TX_INTEN;
!(port->port.flags & GS_TX_INTEN)) {
port->port.flags |= GS_TX_INTEN;
port->rd->enable_tx_interrupts (port);
}
func_exit ();
@ -208,7 +208,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout)
gs_dprintk (GS_DEBUG_FLUSH, "port=%p.\n", port);
if (port) {
gs_dprintk (GS_DEBUG_FLUSH, "xmit_cnt=%x, xmit_buf=%p, tty=%p.\n",
port->xmit_cnt, port->xmit_buf, port->tty);
port->xmit_cnt, port->xmit_buf, port->port.tty);
}
if (!port || port->xmit_cnt < 0 || !port->xmit_buf) {
@ -217,7 +217,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout)
return -EINVAL; /* This is an error which we don't know how to handle. */
}
rcib = gs_real_chars_in_buffer(port->tty);
rcib = gs_real_chars_in_buffer(port->port.tty);
if(rcib <= 0) {
gs_dprintk (GS_DEBUG_FLUSH, "nothing to wait for.\n");
@ -236,7 +236,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout)
/* the expression is actually jiffies < end_jiffies, but that won't
work around the wraparound. Tricky eh? */
while ((charsleft = gs_real_chars_in_buffer (port->tty)) &&
while ((charsleft = gs_real_chars_in_buffer (port->port.tty)) &&
time_after (end_jiffies, jiffies)) {
/* Units check:
chars * (bits/char) * (jiffies /sec) / (bits/sec) = jiffies!
@ -309,7 +309,7 @@ void gs_flush_chars(struct tty_struct * tty)
}
/* Beats me -- REW */
port->flags |= GS_TX_INTEN;
port->port.flags |= GS_TX_INTEN;
port->rd->enable_tx_interrupts (port);
func_exit ();
}
@ -329,8 +329,8 @@ void gs_stop(struct tty_struct * tty)
if (port->xmit_cnt &&
port->xmit_buf &&
(port->flags & GS_TX_INTEN) ) {
port->flags &= ~GS_TX_INTEN;
(port->port.flags & GS_TX_INTEN) ) {
port->port.flags &= ~GS_TX_INTEN;
port->rd->disable_tx_interrupts (port);
}
func_exit ();
@ -349,8 +349,8 @@ void gs_start(struct tty_struct * tty)
if (port->xmit_cnt &&
port->xmit_buf &&
!(port->flags & GS_TX_INTEN) ) {
port->flags |= GS_TX_INTEN;
!(port->port.flags & GS_TX_INTEN) ) {
port->port.flags |= GS_TX_INTEN;
port->rd->enable_tx_interrupts (port);
}
func_exit ();
@ -365,7 +365,7 @@ static void gs_shutdown_port (struct gs_port *port)
if (!port) return;
if (!(port->flags & ASYNC_INITIALIZED))
if (!(port->port.flags & ASYNC_INITIALIZED))
return;
spin_lock_irqsave(&port->driver_lock, flags);
@ -375,12 +375,12 @@ static void gs_shutdown_port (struct gs_port *port)
port->xmit_buf = NULL;
}
if (port->tty)
set_bit(TTY_IO_ERROR, &port->tty->flags);
if (port->port.tty)
set_bit(TTY_IO_ERROR, &port->port.tty->flags);
port->rd->shutdown_port (port);
port->flags &= ~ASYNC_INITIALIZED;
port->port.flags &= ~ASYNC_INITIALIZED;
spin_unlock_irqrestore(&port->driver_lock, flags);
func_exit();
@ -396,16 +396,16 @@ void gs_hangup(struct tty_struct *tty)
if (!tty) return;
port = tty->driver_data;
tty = port->tty;
tty = port->port.tty;
if (!tty)
return;
gs_shutdown_port (port);
port->flags &= ~(ASYNC_NORMAL_ACTIVE|GS_ACTIVE);
port->tty = NULL;
port->count = 0;
port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|GS_ACTIVE);
port->port.tty = NULL;
port->port.count = 0;
wake_up_interruptible(&port->open_wait);
wake_up_interruptible(&port->port.open_wait);
func_exit ();
}
@ -424,7 +424,7 @@ int gs_block_til_ready(void *port_, struct file * filp)
if (!port) return 0;
tty = port->tty;
tty = port->port.tty;
if (!tty) return 0;
@ -433,9 +433,9 @@ int gs_block_til_ready(void *port_, struct file * filp)
* If the device is in the middle of being closed, then block
* until it's done, and then try again.
*/
if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
interruptible_sleep_on(&port->close_wait);
if (port->flags & ASYNC_HUP_NOTIFY)
if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) {
interruptible_sleep_on(&port->port.close_wait);
if (port->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
else
return -ERESTARTSYS;
@ -449,7 +449,7 @@ int gs_block_til_ready(void *port_, struct file * filp)
*/
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
port->flags |= ASYNC_NORMAL_ACTIVE;
port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@ -461,34 +461,34 @@ int gs_block_til_ready(void *port_, struct file * filp)
/*
* Block waiting for the carrier detect and the line to become
* free (i.e., not in use by the callout). While we are in
* this loop, port->count is dropped by one, so that
* this loop, port->port.count is dropped by one, so that
* rs_close() knows when to free things. We restore it upon
* exit, either normal or abnormal.
*/
retval = 0;
add_wait_queue(&port->open_wait, &wait);
add_wait_queue(&port->port.open_wait, &wait);
gs_dprintk (GS_DEBUG_BTR, "after add waitq.\n");
spin_lock_irqsave(&port->driver_lock, flags);
if (!tty_hung_up_p(filp)) {
port->count--;
port->port.count--;
}
spin_unlock_irqrestore(&port->driver_lock, flags);
port->blocked_open++;
port->port.blocked_open++;
while (1) {
CD = port->rd->get_CD (port);
gs_dprintk (GS_DEBUG_BTR, "CD is now %d.\n", CD);
set_current_state (TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
!(port->flags & ASYNC_INITIALIZED)) {
if (port->flags & ASYNC_HUP_NOTIFY)
!(port->port.flags & ASYNC_INITIALIZED)) {
if (port->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
break;
}
if (!(port->flags & ASYNC_CLOSING) &&
if (!(port->port.flags & ASYNC_CLOSING) &&
(do_clocal || CD))
break;
gs_dprintk (GS_DEBUG_BTR, "signal_pending is now: %d (%lx)\n",
@ -500,17 +500,17 @@ int gs_block_til_ready(void *port_, struct file * filp)
schedule();
}
gs_dprintk (GS_DEBUG_BTR, "Got out of the loop. (%d)\n",
port->blocked_open);
port->port.blocked_open);
set_current_state (TASK_RUNNING);
remove_wait_queue(&port->open_wait, &wait);
remove_wait_queue(&port->port.open_wait, &wait);
if (!tty_hung_up_p(filp)) {
port->count++;
port->port.count++;
}
port->blocked_open--;
port->port.blocked_open--;
if (retval)
return retval;
port->flags |= ASYNC_NORMAL_ACTIVE;
port->port.flags |= ASYNC_NORMAL_ACTIVE;
func_exit ();
return 0;
}
@ -529,10 +529,10 @@ void gs_close(struct tty_struct * tty, struct file * filp)
if (!port) return;
if (!port->tty) {
if (!port->port.tty) {
/* This seems to happen when this is called from vhangup. */
gs_dprintk (GS_DEBUG_CLOSE, "gs: Odd: port->tty is NULL\n");
port->tty = tty;
gs_dprintk (GS_DEBUG_CLOSE, "gs: Odd: port->port.tty is NULL\n");
port->port.tty = tty;
}
spin_lock_irqsave(&port->driver_lock, flags);
@ -545,23 +545,23 @@ void gs_close(struct tty_struct * tty, struct file * filp)
return;
}
if ((tty->count == 1) && (port->count != 1)) {
if ((tty->count == 1) && (port->port.count != 1)) {
printk(KERN_ERR "gs: gs_close port %p: bad port count;"
" tty->count is 1, port count is %d\n", port, port->count);
port->count = 1;
" tty->count is 1, port count is %d\n", port, port->port.count);
port->port.count = 1;
}
if (--port->count < 0) {
printk(KERN_ERR "gs: gs_close port %p: bad port count: %d\n", port, port->count);
port->count = 0;
if (--port->port.count < 0) {
printk(KERN_ERR "gs: gs_close port %p: bad port count: %d\n", port, port->port.count);
port->port.count = 0;
}
if (port->count) {
gs_dprintk(GS_DEBUG_CLOSE, "gs_close port %p: count: %d\n", port, port->count);
if (port->port.count) {
gs_dprintk(GS_DEBUG_CLOSE, "gs_close port %p: count: %d\n", port, port->port.count);
spin_unlock_irqrestore(&port->driver_lock, flags);
func_exit ();
return;
}
port->flags |= ASYNC_CLOSING;
port->port.flags |= ASYNC_CLOSING;
/*
* Now we wait for the transmit buffer to clear; and we notify
@ -585,7 +585,7 @@ void gs_close(struct tty_struct * tty, struct file * filp)
if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
gs_wait_tx_flushed (port, port->closing_wait);
port->flags &= ~GS_ACTIVE;
port->port.flags &= ~GS_ACTIVE;
gs_flush_buffer(tty);
@ -595,18 +595,18 @@ void gs_close(struct tty_struct * tty, struct file * filp)
port->event = 0;
port->rd->close (port);
port->rd->shutdown_port (port);
port->tty = NULL;
port->port.tty = NULL;
if (port->blocked_open) {
if (port->port.blocked_open) {
if (port->close_delay) {
spin_unlock_irqrestore(&port->driver_lock, flags);
msleep_interruptible(jiffies_to_msecs(port->close_delay));
spin_lock_irqsave(&port->driver_lock, flags);
}
wake_up_interruptible(&port->open_wait);
wake_up_interruptible(&port->port.open_wait);
}
port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING | ASYNC_INITIALIZED);
wake_up_interruptible(&port->close_wait);
port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING | ASYNC_INITIALIZED);
wake_up_interruptible(&port->port.close_wait);
func_exit ();
}
@ -626,10 +626,10 @@ void gs_set_termios (struct tty_struct * tty,
port = tty->driver_data;
if (!port) return;
if (!port->tty) {
if (!port->port.tty) {
/* This seems to happen when this is called after gs_close. */
gs_dprintk (GS_DEBUG_TERMIOS, "gs: Odd: port->tty is NULL\n");
port->tty = tty;
gs_dprintk (GS_DEBUG_TERMIOS, "gs: Odd: port->port.tty is NULL\n");
port->port.tty = tty;
}
@ -651,15 +651,15 @@ void gs_set_termios (struct tty_struct * tty,
baudrate = tty_get_baud_rate(tty);
if ((tiosp->c_cflag & CBAUD) == B38400) {
if ( (port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
if ( (port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
baudrate = 57600;
else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
baudrate = 115200;
else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
baudrate = 230400;
else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
baudrate = 460800;
else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
baudrate = (port->baud_base / port->custom_divisor);
}
@ -715,7 +715,7 @@ int gs_init_port(struct gs_port *port)
func_enter ();
if (port->flags & ASYNC_INITIALIZED) {
if (port->port.flags & ASYNC_INITIALIZED) {
func_exit ();
return 0;
}
@ -737,15 +737,15 @@ int gs_init_port(struct gs_port *port)
}
spin_lock_irqsave (&port->driver_lock, flags);
if (port->tty)
clear_bit(TTY_IO_ERROR, &port->tty->flags);
if (port->port.tty)
clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
mutex_init(&port->port_write_mutex);
port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
spin_unlock_irqrestore(&port->driver_lock, flags);
gs_set_termios(port->tty, NULL);
gs_set_termios(port->port.tty, NULL);
spin_lock_irqsave (&port->driver_lock, flags);
port->flags |= ASYNC_INITIALIZED;
port->flags &= ~GS_TX_INTEN;
port->port.flags |= ASYNC_INITIALIZED;
port->port.flags &= ~GS_TX_INTEN;
spin_unlock_irqrestore(&port->driver_lock, flags);
func_exit ();
@ -764,11 +764,11 @@ int gs_setserial(struct gs_port *port, struct serial_struct __user *sp)
if ((sio.baud_base != port->baud_base) ||
(sio.close_delay != port->close_delay) ||
((sio.flags & ~ASYNC_USR_MASK) !=
(port->flags & ~ASYNC_USR_MASK)))
(port->port.flags & ~ASYNC_USR_MASK)))
return(-EPERM);
}
port->flags = (port->flags & ~ASYNC_USR_MASK) |
port->port.flags = (port->port.flags & ~ASYNC_USR_MASK) |
(sio.flags & ASYNC_USR_MASK);
port->baud_base = sio.baud_base;
@ -776,7 +776,7 @@ int gs_setserial(struct gs_port *port, struct serial_struct __user *sp)
port->closing_wait = sio.closing_wait;
port->custom_divisor = sio.custom_divisor;
gs_set_termios (port->tty, NULL);
gs_set_termios (port->port.tty, NULL);
return 0;
}
@ -793,7 +793,7 @@ int gs_getserial(struct gs_port *port, struct serial_struct __user *sp)
struct serial_struct sio;
memset(&sio, 0, sizeof(struct serial_struct));
sio.flags = port->flags;
sio.flags = port->port.flags;
sio.baud_base = port->baud_base;
sio.close_delay = port->close_delay;
sio.closing_wait = port->closing_wait;
@ -821,10 +821,10 @@ void gs_got_break(struct gs_port *port)
{
func_enter ();
tty_insert_flip_char(port->tty, 0, TTY_BREAK);
tty_schedule_flip(port->tty);
if (port->flags & ASYNC_SAK) {
do_SAK (port->tty);
tty_insert_flip_char(port->port.tty, 0, TTY_BREAK);
tty_schedule_flip(port->port.tty);
if (port->port.flags & ASYNC_SAK) {
do_SAK (port->port.tty);
}
func_exit ();

20
drivers/char/rio/rio_linux.c
View file

@ -431,7 +431,7 @@ static void rio_disable_tx_interrupts(void *ptr)
{
func_enter();
/* port->gs.flags &= ~GS_TX_INTEN; */
/* port->gs.port.flags &= ~GS_TX_INTEN; */
func_exit();
}
@ -455,7 +455,7 @@ static void rio_enable_tx_interrupts(void *ptr)
* In general we cannot count on "tx empty" interrupts, although
* the interrupt routine seems to be able to tell the difference.
*/
PortP->gs.flags &= ~GS_TX_INTEN;
PortP->gs.port.flags &= ~GS_TX_INTEN;
func_exit();
}
@ -510,7 +510,7 @@ static void rio_shutdown_port(void *ptr)
func_enter();
PortP = (struct Port *) ptr;
PortP->gs.tty = NULL;
PortP->gs.port.tty = NULL;
func_exit();
}
@ -529,7 +529,7 @@ static void rio_hungup(void *ptr)
func_enter();
PortP = (struct Port *) ptr;
PortP->gs.tty = NULL;
PortP->gs.port.tty = NULL;
func_exit();
}
@ -549,12 +549,12 @@ static void rio_close(void *ptr)
riotclose(ptr);
if (PortP->gs.count) {
printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.count);
PortP->gs.count = 0;
if (PortP->gs.port.count) {
printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.port.count);
PortP->gs.port.count = 0;
}
PortP->gs.tty = NULL;
PortP->gs.port.tty = NULL;
func_exit();
}
@ -849,8 +849,8 @@ static int rio_init_datastructures(void)
/*
* Initializing wait queue
*/
init_waitqueue_head(&port->gs.open_wait);
init_waitqueue_head(&port->gs.close_wait);
init_waitqueue_head(&port->gs.port.open_wait);
init_waitqueue_head(&port->gs.port.close_wait);
}
#else
/* We could postpone initializing them to when they are configured. */

10
drivers/char/rio/riocmd.c
View file

@ -484,12 +484,12 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
** If the device is a modem, then check the modem
** carrier.
*/
if (PortP->gs.tty == NULL)
if (PortP->gs.port.tty == NULL)
break;
if (PortP->gs.tty->termios == NULL)
if (PortP->gs.port.tty->termios == NULL)
break;
if (!(PortP->gs.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) {
if (!(PortP->gs.port.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) {
rio_dprintk(RIO_DEBUG_CMD, "Is there a Carrier?\n");
/*
@ -506,7 +506,7 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
** wakeup anyone in WOPEN
*/
if (PortP->State & (PORT_ISOPEN | RIO_WOPEN))
wake_up_interruptible(&PortP->gs.open_wait);
wake_up_interruptible(&PortP->gs.port.open_wait);
}
} else {
/*
@ -514,7 +514,7 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
*/
if (PortP->State & RIO_CARR_ON) {
if (PortP->State & (PORT_ISOPEN | RIO_WOPEN | RIO_MOPEN))
tty_hangup(PortP->gs.tty);
tty_hangup(PortP->gs.port.tty);
PortP->State &= ~RIO_CARR_ON;
rio_dprintk(RIO_DEBUG_CMD, "Carrirer just went down\n");
}

10
drivers/char/rio/riointr.c
View file

@ -102,7 +102,7 @@ void RIOTxEnable(char *en)
PortP = (struct Port *) en;
p = (struct rio_info *) PortP->p;
tty = PortP->gs.tty;
tty = PortP->gs.port.tty;
rio_dprintk(RIO_DEBUG_INTR, "tx port %d: %d chars queued.\n", PortP->PortNum, PortP->gs.xmit_cnt);
@ -158,7 +158,7 @@ void RIOTxEnable(char *en)
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
if (PortP->gs.xmit_cnt <= (PortP->gs.wakeup_chars + 2 * PKT_MAX_DATA_LEN))
tty_wakeup(PortP->gs.tty);
tty_wakeup(PortP->gs.port.tty);
}
@ -241,7 +241,7 @@ void RIOServiceHost(struct rio_info *p, struct Host *HostP)
** find corresponding tty structure. The process of mapping
** the ports puts these here.
*/
ttyP = PortP->gs.tty;
ttyP = PortP->gs.port.tty;
/*
** Lock the port before we begin working on it.
@ -335,7 +335,7 @@ void RIOServiceHost(struct rio_info *p, struct Host *HostP)
** find corresponding tty structure. The process of mapping
** the ports puts these here.
*/
ttyP = PortP->gs.tty;
ttyP = PortP->gs.port.tty;
/* If ttyP is NULL, the port is getting closed. Forget about it. */
if (!ttyP) {
rio_dprintk(RIO_DEBUG_INTR, "no tty, so skipping.\n");
@ -542,7 +542,7 @@ static void RIOReceive(struct rio_info *p, struct Port *PortP)
intCount++;
TtyP = PortP->gs.tty;
TtyP = PortP->gs.port.tty;
if (!TtyP) {
rio_dprintk(RIO_DEBUG_INTR, "RIOReceive: tty is null. \n");
return;

2
drivers/char/rio/rioparam.c
View file

@ -160,7 +160,7 @@ int RIOParam(struct Port *PortP, int cmd, int Modem, int SleepFlag)
func_enter();
TtyP = PortP->gs.tty;
TtyP = PortP->gs.port.tty;
rio_dprintk(RIO_DEBUG_PARAM, "RIOParam: Port:%d cmd:%d Modem:%d SleepFlag:%d Mapped: %d, tty=%p\n", PortP->PortNum, cmd, Modem, SleepFlag, PortP->Mapped, TtyP);

16
drivers/char/rio/riotty.c
View file

@ -140,14 +140,14 @@ int riotopen(struct tty_struct *tty, struct file *filp)
tty->driver_data = PortP;
PortP->gs.tty = tty;
PortP->gs.count++;
PortP->gs.port.tty = tty;
PortP->gs.port.count++;
rio_dprintk(RIO_DEBUG_TTY, "%d bytes in tx buffer\n", PortP->gs.xmit_cnt);
retval = gs_init_port(&PortP->gs);
if (retval) {
PortP->gs.count--;
PortP->gs.port.count--;
return -ENXIO;
}
/*
@ -293,7 +293,7 @@ int riotopen(struct tty_struct *tty, struct file *filp)
** insert test for carrier here. -- ???
** I already see that test here. What's the deal? -- REW
*/
if ((PortP->gs.tty->termios->c_cflag & CLOCAL) ||
if ((PortP->gs.port.tty->termios->c_cflag & CLOCAL) ||
(PortP->ModemState & RIOC_MSVR1_CD)) {
rio_dprintk(RIO_DEBUG_TTY, "open(%d) Modem carr on\n", SysPort);
/*
@ -301,16 +301,16 @@ int riotopen(struct tty_struct *tty, struct file *filp)
wakeup((caddr_t) &tp->tm.c_canq);
*/
PortP->State |= RIO_CARR_ON;
wake_up_interruptible(&PortP->gs.open_wait);
wake_up_interruptible(&PortP->gs.port.open_wait);
} else { /* no carrier - wait for DCD */
/*
while (!(PortP->gs.tty->termios->c_state & CARR_ON) &&
while (!(PortP->gs.port.tty->termios->c_state & CARR_ON) &&
!(filp->f_flags & O_NONBLOCK) && !p->RIOHalted )
*/
while (!(PortP->State & RIO_CARR_ON) && !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted) {
rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr on\n", SysPort);
/*
PortP->gs.tty->termios->c_state |= WOPEN;
PortP->gs.port.tty->termios->c_state |= WOPEN;
*/
PortP->State |= RIO_WOPEN;
rio_spin_unlock_irqrestore(&PortP->portSem, flags);
@ -380,7 +380,7 @@ int riotclose(void *ptr)
/* PortP = p->RIOPortp[SysPort]; */
rio_dprintk(RIO_DEBUG_TTY, "Port is at address %p\n", PortP);
/* tp = PortP->TtyP; *//* Get tty */
tty = PortP->gs.tty;
tty = PortP->gs.port.tty;
rio_dprintk(RIO_DEBUG_TTY, "TTY is at address %p\n", tty);
if (PortP->gs.closing_wait)

115
drivers/char/sx.c
View file

@ -1,4 +1,3 @@
/* sx.c -- driver for the Specialix SX series cards.
*
* This driver will also support the older SI, and XIO cards.
@ -930,7 +929,7 @@ static int sx_set_real_termios(void *ptr)
func_enter2();
if (!port->gs.tty)
if (!port->gs.port.tty)
return 0;
/* What is this doing here? -- REW
@ -941,19 +940,19 @@ static int sx_set_real_termios(void *ptr)
sx_set_baud(port);
#define CFLAG port->gs.tty->termios->c_cflag
#define CFLAG port->gs.port.tty->termios->c_cflag
sx_write_channel_byte(port, hi_mr1,
(C_PARENB(port->gs.tty) ? MR1_WITH : MR1_NONE) |
(C_PARODD(port->gs.tty) ? MR1_ODD : MR1_EVEN) |
(C_CRTSCTS(port->gs.tty) ? MR1_RTS_RXFLOW : 0) |
(C_PARENB(port->gs.port.tty) ? MR1_WITH : MR1_NONE) |
(C_PARODD(port->gs.port.tty) ? MR1_ODD : MR1_EVEN) |
(C_CRTSCTS(port->gs.port.tty) ? MR1_RTS_RXFLOW : 0) |
(((CFLAG & CSIZE) == CS8) ? MR1_8_BITS : 0) |
(((CFLAG & CSIZE) == CS7) ? MR1_7_BITS : 0) |
(((CFLAG & CSIZE) == CS6) ? MR1_6_BITS : 0) |
(((CFLAG & CSIZE) == CS5) ? MR1_5_BITS : 0));
sx_write_channel_byte(port, hi_mr2,
(C_CRTSCTS(port->gs.tty) ? MR2_CTS_TXFLOW : 0) |
(C_CSTOPB(port->gs.tty) ? MR2_2_STOP :
(C_CRTSCTS(port->gs.port.tty) ? MR2_CTS_TXFLOW : 0) |
(C_CSTOPB(port->gs.port.tty) ? MR2_2_STOP :
MR2_1_STOP));
switch (CFLAG & CSIZE) {
@ -976,44 +975,44 @@ static int sx_set_real_termios(void *ptr)
}
sx_write_channel_byte(port, hi_prtcl,
(I_IXON(port->gs.tty) ? SP_TXEN : 0) |
(I_IXOFF(port->gs.tty) ? SP_RXEN : 0) |
(I_IXANY(port->gs.tty) ? SP_TANY : 0) | SP_DCEN);
(I_IXON(port->gs.port.tty) ? SP_TXEN : 0) |
(I_IXOFF(port->gs.port.tty) ? SP_RXEN : 0) |
(I_IXANY(port->gs.port.tty) ? SP_TANY : 0) | SP_DCEN);
sx_write_channel_byte(port, hi_break,
(I_IGNBRK(port->gs.tty) ? BR_IGN : 0 |
I_BRKINT(port->gs.tty) ? BR_INT : 0));
(I_IGNBRK(port->gs.port.tty) ? BR_IGN : 0 |
I_BRKINT(port->gs.port.tty) ? BR_INT : 0));
sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.tty));
sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.tty));
sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.tty));
sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.tty));
sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.port.tty));
sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.port.tty));
sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.port.tty));
sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.port.tty));
sx_reconfigure_port(port);
/* Tell line discipline whether we will do input cooking */
if (I_OTHER(port->gs.tty)) {
clear_bit(TTY_HW_COOK_IN, &port->gs.tty->flags);
if (I_OTHER(port->gs.port.tty)) {
clear_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags);
} else {
set_bit(TTY_HW_COOK_IN, &port->gs.tty->flags);
set_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags);
}
sx_dprintk(SX_DEBUG_TERMIOS, "iflags: %x(%d) ",
(unsigned int)port->gs.tty->termios->c_iflag,
I_OTHER(port->gs.tty));
(unsigned int)port->gs.port.tty->termios->c_iflag,
I_OTHER(port->gs.port.tty));
/* Tell line discipline whether we will do output cooking.
* If OPOST is set and no other output flags are set then we can do output
* processing. Even if only *one* other flag in the O_OTHER group is set
* we do cooking in software.
*/
if (O_OPOST(port->gs.tty) && !O_OTHER(port->gs.tty)) {
set_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags);
if (O_OPOST(port->gs.port.tty) && !O_OTHER(port->gs.port.tty)) {
set_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags);
} else {
clear_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags);
clear_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags);
}
sx_dprintk(SX_DEBUG_TERMIOS, "oflags: %x(%d)\n",
(unsigned int)port->gs.tty->termios->c_oflag,
O_OTHER(port->gs.tty));
(unsigned int)port->gs.port.tty->termios->c_oflag,
O_OTHER(port->gs.port.tty));
/* port->c_dcd = sx_get_CD (port); */
func_exit();
return 0;
@ -1102,8 +1101,8 @@ static void sx_transmit_chars(struct sx_port *port)
sx_disable_tx_interrupts(port);
}
if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.tty) {
tty_wakeup(port->gs.tty);
if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.port.tty) {
tty_wakeup(port->gs.port.tty);
sx_dprintk(SX_DEBUG_TRANSMIT, "Waking up.... ldisc (%d)....\n",
port->gs.wakeup_chars);
}
@ -1126,7 +1125,7 @@ static inline void sx_receive_chars(struct sx_port *port)
unsigned char *rp;
func_enter2();
tty = port->gs.tty;
tty = port->gs.port.tty;
while (1) {
rx_op = sx_read_channel_byte(port, hi_rxopos);
c = (sx_read_channel_byte(port, hi_rxipos) - rx_op) & 0xff;
@ -1211,12 +1210,12 @@ static inline void sx_check_modem_signals(struct sx_port *port)
/* DCD went UP */
if ((sx_read_channel_byte(port, hi_hstat) !=
HS_IDLE_CLOSED) &&
!(port->gs.tty->termios->
!(port->gs.port.tty->termios->
c_cflag & CLOCAL)) {
/* Are we blocking in open? */
sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
"active, unblocking open\n");
wake_up_interruptible(&port->gs.
wake_up_interruptible(&port->gs.port.
open_wait);
} else {
sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
@ -1224,10 +1223,10 @@ static inline void sx_check_modem_signals(struct sx_port *port)
}
} else {
/* DCD went down! */
if (!(port->gs.tty->termios->c_cflag & CLOCAL)){
if (!(port->gs.port.tty->termios->c_cflag & CLOCAL)){
sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
"dropped. hanging up....\n");
tty_hangup(port->gs.tty);
tty_hangup(port->gs.port.tty);
} else {
sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
"dropped. ignoring.\n");
@ -1325,7 +1324,7 @@ static irqreturn_t sx_interrupt(int irq, void *ptr)
for (i = 0; i < board->nports; i++) {
port = &board->ports[i];
if (port->gs.flags & GS_ACTIVE) {
if (port->gs.port.flags & GS_ACTIVE) {
if (sx_read_channel_byte(port, hi_state)) {
sx_dprintk(SX_DEBUG_INTERRUPTS, "Port %d: "
"modem signal change?... \n",i);
@ -1334,7 +1333,7 @@ static irqreturn_t sx_interrupt(int irq, void *ptr)
if (port->gs.xmit_cnt) {
sx_transmit_chars(port);
}
if (!(port->gs.flags & SX_RX_THROTTLE)) {
if (!(port->gs.port.flags & SX_RX_THROTTLE)) {
sx_receive_chars(port);
}
}
@ -1373,7 +1372,7 @@ static void sx_disable_tx_interrupts(void *ptr)
struct sx_port *port = ptr;
func_enter2();
port->gs.flags &= ~GS_TX_INTEN;
port->gs.port.flags &= ~GS_TX_INTEN;
func_exit();
}
@ -1394,7 +1393,7 @@ static void sx_enable_tx_interrupts(void *ptr)
/* XXX Must be "HIGH_WATER" for SI card according to doc. */
if (data_in_buffer < LOW_WATER)
port->gs.flags &= ~GS_TX_INTEN;
port->gs.port.flags &= ~GS_TX_INTEN;
func_exit();
}
@ -1442,8 +1441,8 @@ static void sx_shutdown_port(void *ptr)
func_enter();
port->gs.flags &= ~GS_ACTIVE;
if (port->gs.tty && (port->gs.tty->termios->c_cflag & HUPCL)) {
port->gs.port.flags &= ~GS_ACTIVE;
if (port->gs.port.tty && (port->gs.port.tty->termios->c_cflag & HUPCL)) {
sx_setsignals(port, 0, 0);
sx_reconfigure_port(port);
}
@ -1485,8 +1484,8 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
spin_lock_irqsave(&port->gs.driver_lock, flags);
tty->driver_data = port;
port->gs.tty = tty;
port->gs.count++;
port->gs.port.tty = tty;
port->gs.port.count++;
spin_unlock_irqrestore(&port->gs.driver_lock, flags);
sx_dprintk(SX_DEBUG_OPEN, "starting port\n");
@ -1497,12 +1496,12 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
retval = gs_init_port(&port->gs);
sx_dprintk(SX_DEBUG_OPEN, "done gs_init\n");
if (retval) {
port->gs.count--;
port->gs.port.count--;
return retval;
}
port->gs.flags |= GS_ACTIVE;
if (port->gs.count <= 1)
port->gs.port.flags |= GS_ACTIVE;
if (port->gs.port.count <= 1)
sx_setsignals(port, 1, 1);
#if 0
@ -1513,12 +1512,12 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
my_hd_io(port->board->base + port->ch_base, sizeof(*port));
#endif
if (port->gs.count <= 1) {
if (port->gs.port.count <= 1) {
if (sx_send_command(port, HS_LOPEN, -1, HS_IDLE_OPEN) != 1) {
printk(KERN_ERR "sx: Card didn't respond to LOPEN "
"command.\n");
spin_lock_irqsave(&port->gs.driver_lock, flags);
port->gs.count--;
port->gs.port.count--;
spin_unlock_irqrestore(&port->gs.driver_lock, flags);
return -EIO;
}
@ -1526,11 +1525,11 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
retval = gs_block_til_ready(port, filp);
sx_dprintk(SX_DEBUG_OPEN, "Block til ready returned %d. Count=%d\n",
retval, port->gs.count);
retval, port->gs.port.count);
if (retval) {
/*
* Don't lower gs.count here because sx_close() will be called later
* Don't lower gs.port.count here because sx_close() will be called later
*/
return retval;
@ -1571,14 +1570,14 @@ static void sx_close(void *ptr)
}
sx_dprintk(SX_DEBUG_CLOSE, "waited %d jiffies for close. count=%d\n",
5 * HZ - to - 1, port->gs.count);
5 * HZ - to - 1, port->gs.port.count);
if (port->gs.count) {
if (port->gs.port.count) {
sx_dprintk(SX_DEBUG_CLOSE, "WARNING port count:%d\n",
port->gs.count);
port->gs.port.count);
/*printk("%s SETTING port count to zero: %p count: %d\n",
__func__, port, port->gs.count);
port->gs.count = 0;*/
__func__, port, port->gs.port.count);
port->gs.port.count = 0;*/
}
func_exit();
@ -1939,7 +1938,7 @@ static void sx_throttle(struct tty_struct *tty)
* control then throttle the port.
*/
if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty))) {
port->gs.flags |= SX_RX_THROTTLE;
port->gs.port.flags |= SX_RX_THROTTLE;
}
func_exit();
}
@ -1953,7 +1952,7 @@ static void sx_unthrottle(struct tty_struct *tty)
* this port in case we disabled flow control while the port
* was throttled
*/
port->gs.flags &= ~SX_RX_THROTTLE;
port->gs.port.flags &= ~SX_RX_THROTTLE;
func_exit();
return;
}
@ -2408,9 +2407,7 @@ static int sx_init_portstructs(int nboards, int nports)
/*
* Initializing wait queue
*/
init_waitqueue_head(&port->gs.open_wait);
init_waitqueue_head(&port->gs.close_wait);
tty_port_init(&port->gs.port);
port++;
}
}

8
include/linux/generic_serial.h
View file

@ -14,6 +14,7 @@
#ifdef __KERNEL__
#include <linux/mutex.h>
#include <linux/tty.h>
struct real_driver {
void (*disable_tx_interrupts) (void *);
@ -33,17 +34,12 @@ struct real_driver {
struct gs_port {
int magic;
struct tty_port port;
unsigned char *xmit_buf;
int xmit_head;
int xmit_tail;
int xmit_cnt;
struct mutex port_write_mutex;
int flags;
wait_queue_head_t open_wait;
wait_queue_head_t close_wait;
int count;
int blocked_open;
struct tty_struct *tty;
unsigned long event;
unsigned short closing_wait;
int close_delay;